Conformation of intramolecularly cross-linked polymer nanoparticles on solid substrates
2005 (English)In: Nano letters (Print), ISSN 1530-6984, E-ISSN 1530-6992, Vol. 5, no 9, 1704-1709 p.Article in journal (Refereed) Published
The conformation of cross-linked, monomolecular, polystyrene nanoparticles on a solid substrate is considered as a function of cross-linking degree and substrate surface free energy. It is found that an extreme amount of cross-linking is necessary for the ca. 5-10 nm diameter nanoparticles to retain their original spherical shape, regardless of surface free energy. A lesser amount of cross-linking produces a nanoparticle that collapses to a pancake-like conformation on a high-energy substrate yet remains spherical on a low-energy surface. A simple model is developed to reveal the relationship between nanoparticle modulus and surface free energy to define the nanoparticle conformation.
Place, publisher, year, edition, pages
2005. Vol. 5, no 9, 1704-1709 p.
IdentifiersURN: urn:nbn:se:kth:diva-87595DOI: 10.1021/nl050941fISI: 000231945500013PubMedID: 16159209OAI: oai:DiVA.org:kth-87595DiVA: diva2:501776
QC 201203092012-02-142012-02-142012-03-09Bibliographically approved